Any.hashCode() and Any?.hasCodeOrDefault(Int) added to standard library

libraries/stdlib/src/kotlin/StandardJVM.kt

@@ -47,3 +47,9 @@ public inline fun <T> callable(action: ()-> T): Callable<T> {
         public override fun call() = action()
     }
 }
+
+/**
+ * A helper method for calling hashCode() on Kotlin objects
+ * TODO remove when Any supports equals() and hashCode()
+ */
+ public inline fun Any.hashCode(): Int = (this as java.lang.Object).hashCode()

libraries/stdlib/src/kotlin/nullable/Nullables.kt

@@ -181,3 +181,7 @@ public inline fun <in T> T?.toSortedList(transform: fun(T) : java.lang.Comparabl
   return answer
 }
 */
+
+
+/** Returns a hash code on an existing object, or default value otherwise */
+ public inline fun Any?.hashCodeOrDefault(default: Int): Int = if (this == null) default else this.hashCode()